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Editorial Team
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Asked: 2026-05-15T10:46:56+00:00

How do you put an IF DEBUG condition in a c# program so that,

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How do you put an “IF DEBUG” condition in a c# program so that, at run time, it will ignore a set of code if you are running in Debug mode and yet, execute a block of code if the program is not running in debug mode? A situation where this can be used is if a time stamp is taken at the start of a block and another time stamp is taken at the end. THey will hardly differ at run time. Yet, if you are stepping through the code in debug mode, they will differ a lot, and error conditions in an “if block” might be kicked off leading to the untimely (pun) execution of some code.

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1 Answer

  1. Editorial Team

    You just put your code in a block like this:

    #IF DEBUG

//code goes here

#endif

    This is not a runtime thing, this is a preprocessor directive, which means the code in that block won’t even be compiled and will not be included.

    If you want to check at runtime if you’re debugging, you can check Debugger.IsAttached

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